Elapsed Time Minus Holidays

kod2th3e

Board Regular
Joined
Apr 2, 2008
Messages
87
I would like to calculate the difference in time between two dates. Assuming that my company works 24/7 I would like to calculate the difference between an "IN" date/time and "FINISH" date/time skipping over any days that may be in a list of holidays.

So, if in cell A1 I have 9/11/2009 9:23 AM ("IN" date/time) and in cell B1 I have 9/14/2009 9:23 AM ("FINISH" date/time) and I have dates 9/12/2009, 9/15/2009, & 9/19/2009 in H1:H3 ("holiday list") then, I would like Cell C1 to display 48:00:00 because 9/12/2009 is in a list of holidays to skip over.

Otherwise. if 9/12/2009 wasn't in the list of holidays it should read 72:00:00.

If anyone could help with this, that'd be awesome, thanks for your time in viewing.
 

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TFCJamieFay

Active Member
Joined
Oct 3, 2007
Messages
480
Hi,

Try:

Code:
=SUM(C2-C1)-COUNTA(HolidayList)

Where "HolidayList" is a named range containing your holidays, C1 is you start date and time and C2 is your end date and time.

HTH,

Jay
 

kod2th3e

Board Regular
Joined
Apr 2, 2008
Messages
87
I get a negative number when this is done, so the cell that this formula is in displays a whole bunch of pound (#) signs.
 
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